Two-part interlocking tire



B. E. RUSS. WO-PART INTEHLOCKING TIRE. APPLICATION mso rEB. 15, 19

BY #fl/@M l. ATTORNEY.

UNITED STATES PATENT OFFICE.

BRUCE EDWARD BLISS, or WICHITA, KANSAS.

TWO-PART INTRLOCKING- TIRE.

Specification of Letters Patent.

Patented July 29,1919.

Application led February 15, 1919. Serial No. 277,240.

description, referring to the accompanying4 drawings, which form a' partof this specification. I

. Thelobject of the invention is to provide a casing composed of two parts the object of which is that when the tread is wornthrough theoutside casing it can be replaced without professional assistance, also'that the'li'fe of the case may be increased at a lesser cost and also to increase the life of the fabricated portions of the casing by increasing and distributing the elastln members and also the possibility of slidingthe outer casing where-l by a hole protruding through both members may not communicate directly to the inner tube and also to provide means to prevent a sliding motion in any direction of the outside casing, and further mechanical means to insure perfect contact and stability of position between .the two casings, thereby providing a practical casing for automobile and kindred uses. In the drawings Figure 1 is a top view of the tire with a portion of the outside casing removed to show the channels which continueon the periphery of the inner casing.

fEig. 2 Ais an inside view of Fig. 5 showing the protruding ribs which coincide with tlrechannels shown in Fig.. 1.

. F ig. 3 is a cross section on line A-A Fig. I looking in the direction of arrow.

Fig. 4 is a sectional View on line B-B Fig. 1 looking in the direction of arrow.

Fig. 5 is a sectional view on line CA-C in `Fig. 2 looking in thc direction of arrow.

Similar characters of reference indicate corresponding parts throughout the drawings.

Referring to the drawings D is an outside casing adapted to fit closely over the surface of an inside casing substantially as shown in sectional view Fig. 3; said casing is composed of a plurality of layers of fabric as Shown at E and elastic body as shown at F said fabric being well cemented together and also cemented to the elastic body. G- is .an inside casing composed of a plurality of layers of fabric and elastic body all firmly gether;

-cemented together and formed substantially asshown in the drawings. H are the layers of fabric and I is the elastic body. J is a channel extending longitudinally around in the periphery of the inside casing G. K is a. plurality of transverse channels intersecty ing at intervals With channel J as shown in Fig. l. L is a protruding rib with beveled corners adapted to seat in channel J. M

' are the transverse ribs adapted to seat vin channels K. The said ribs L and M are-placed to'coincide and enter into the channels J and K, the object of which is to prevent casing D from slipping around on casing` G or creeping longitudinally during the rotation of the wheel on the road, andas a further means to bind casing D in perfect contact to casing G metallic wires i 1 and N2 are firmly bound in the edges of casing D and a groove is cut in Casing Gr as shown at O1 and O2 and the casing placed on a wheel rim as shown at P and the inner tube inflated will crowd inner edges of the -casing against the flanges of the rim as shown at Q1 and Q2 rendering it impossible Jfor the outside casing to be removed therefore perfect contact i s made between the inside and outside casing.

Various sizes and shapes of tires maybe constructed and to conform to the shape of different makes of standard rims to hold the casings in perfect contact substantially as y shown and described.

Having thus described my invention, what I claim as new and desire to secureby Letters Patent, is

1. In an outer casing for pneumatic tires composed of a plurality. of layers of fabric and elastic body elements-integrally cemented together; a centrally situated longitudinally extending rib protruding from the inner wall face of said casing and intersected at spaced `intervals by .transverse ribs similarly protruding from said wall face; the edges of Said casing being inwardly bent and fabricated to form inextensible flanged members for the purposes as specified.

2. In a casing for pneumatic tires composed of a plurality of layers of fabric and elastic body elementsintegrall cemented toi a centrally situated ongitudinally extending channel vformed in the periphery thereof and intersected at spaced intervalsv by: channels transversely larranged in said casing periphery; Y the edges of said casing tradingr longitudinal vand transverse forming beads each bead haring a grooved in wardly formed recess for the purposes fas specified.

3. In combination as a shoe t'orpneumatic tires, an innercasinir enveloped b y an 'outer easing; each ot' sai casings comprising a plurality ol layers of fabricand elastic body elements integrally cemented together;- a centrally situated longitudinally extending.)r channel formed in the periphery of said in ner casing and intersected at spaced intervals by ychannels transversely arranged in said casing periphery; and edge heads of said inner casing having grooves inwardly formed therein as specified; a centrally situated longitudinally extending rib protruding fronv the inner wall ot' said'outer casing and intersected `at spaced intervals vby ribs'transversely protruding Jtrom` Said inner wall (if-said casing; said proribs Y of thefo'uter '-asing engaging within said longitudinal and transversechannels of the n inner casing as specified; and edges of saidv (intel-*casing inwardly bent and fabricated torfo'rin inextensible lianged members and engaged within the adjacent grooves in the edge beads of'said inner casing for the purposes as specified.

e. In combination as a shoe for pneumatic tires andinounted on a rim of a wheel and between the flanges thereof, an inner casing envelopedhy anonter casing; each of said y ribs transversely protruding as specified.

casings. comprising a plurality oflayers of fabric and elastic body-elements integrally cemented together; a centrally situated longitudinally extending channel formed in the periphery ot' said-inner casing and intersected at spaced intervals by channels transversely arranged in said casing periphery; and edge heads of said inner asing having grooves formed therein as specified; a centrally situated longitinlinally extending rib protruding from the inner wall ot' said outer casing and intersected at spaced intervals by from said inner wall of saidY easing; said protruding longitudinal and transverse ribs of the outer casing engaging Awithin said lon ritudinal and transverse channelsl ot' the inner casing as specified; and edgesot' said outer casing inwardly bent and fabricated'to form inex- Ktensible flanged members and engaged within the adjacent grooves in the edge beads of said inner casing whereby infiation of an inner tube included within said limer casing will act t0 maintain engagement otl the flanged members of the. outer casingivithin the grooved beads of said inner casing and against the flanged rnn elements of the wheel BRUCE EDWARD Buss. Witnesses:

U. CHARLES,

N ELLIE D. WILBUR. 

